1()0 BihJiographical Kotice. 



Specimens in Museum from Minas Gevaes (Zool. Soc 

 Museum); Eiio-enlieiro Reeve, Espiritu Saiito (A. Robert) \ 

 Rio Janeiro {Capt. Milner and L. Hardy da Drenenf) ; 

 Cruzeiro and Piquet^, Sao Paulo (^Robert) ; Moretes, Parana 

 (^Robert) ; Humboldt (E/irhardt) and Joinville (^e^r), Santa 

 Catlieriiia. 



A very distinct species, readily recognizable by its peculiar 

 ni^. In colour it is not unlike Cavia rosida, but has not tlie 

 special daikeuing on the back. 



BIBLIOGIIAPHICAL ^^OTICE. 



Afric'in Freshwater Fisheif, 



With the completion of vol. iv. of the ' Catalogue of Freshwater 

 Fi-ilies of Africa' (London, the Trustees of the British Museum, 

 1916) Mr. G. A. Boulengcr has earued the gratitude, not merely of 

 students of African fishes or of ichthyologists in general, but of all 

 who are concerned with the problems of geograpliical distribution. 



In these four volumes Mr. Ijoidenger has described the largest 

 collection of freshwater hshes ever brought together from one area 

 in any part of the world, comprising as it does over 15,000 specimens 

 now in the British Museum and an almost equal number in the 

 museums of the Nile Survey, the Congo (Tervueren), S. Africa, 

 Paris, and Luxemburg. 



How immensely our knowledge of the freshwater fishes of Africa 

 has grown during the last thirtj' years or so may be gathered from 

 the fact that in 1880 only 255 species were known. Ten years 

 ago this number had increased to 97-i. In the present catalogue 

 no less than 1425 species are described, and this increase is largely 

 due to the zeal and enthusiasm of the author of this catalogue, of 

 which he may well bo proud. 



Though it would materially have increased the bulk of these 

 volumes, we venture to think that their value would have been 

 immensely increased by the addition of internal anatomical 

 characters — or, at any rate, of skeletal characters — and field-notes 

 contributed by the collectors. But there were probably good 

 reasons for reducing the work to the smallest possible dimensions. 

 Happily it is well illustrated and has a good index. 



